package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.entity.Category;
import com.itheima.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

     @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /*
    * 分页查询
    *
    * */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize){
         //分页构造器
         Page<Category> pageInfo =new Page<>(page,pageSize);
         //条件构造器
        LambdaQueryWrapper<Category> queryWrapper=new LambdaQueryWrapper<>();
        //添加顺序条件，根据sort进行排序
        queryWrapper.orderByAsc(Category::getSort);
        //进行分页查询
        categoryService.page(pageInfo,queryWrapper);
         return R.success(pageInfo);
    }
    /*
    * 根据id来删除分类
    * */
    @DeleteMapping
    public R<String>  delete(Long id){
        log.info("删除分类，id为：{}",id );
      //  categoryService.removeById(id);
        categoryService.remove(id);
         return R.success("分类信息删除成功");

    }
    /*
    * 根据id来修改信息
    * */
    @PutMapping
    public R<String> update(@RequestBody Category category){


         log.info("修改分类信息 {}",category);
       categoryService.updateById(category);

        return R.success("修改分类信息成功");


    }
  /*
  * 根据条件查询分类数据
  * */
    @GetMapping("/list")
    public R<List<Category>> List(Category category){
      //条件构造器
        LambdaQueryWrapper<Category> queryWrapper=new LambdaQueryWrapper<>();
      //添加条件
        queryWrapper.eq(category.getType()!=null,Category::getType ,category.getType());
        //排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);

        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);

    }
}




















